Fountain-pen.



. No. 834,144. PATBNTED 00T. so

- I J. J. MEAD.

FOUNTAIN PEN'. APPLICATION FILED APB. 5,1906.

W/TNESSES y Reference is to be had to the accompany- VUNITED sTA'MrEs PrENT OFFICE- JAcon J. MEAD, or NEW YORK, N. Y.

Patented oct. so, 1906. a

FOUNTAIN-PEN.

No.`.834,74f1. I Specification of Letters Patent.

' Application mea .1pm 5,1906. summa. 310.086.

Tondi/Z whom it may concern:

i, Fountain-Pen-, of which the/following is a vide simple and readily-operated means for of any approved type.

' A further purposeiof the invention islto so the said cap is not in position on the pen.

or bodyy section A, with which the tip 10 is through the end of the body, where it con- Be itfknown that I, JACOB J. MEAD, a citizen ofthe United States, and a resident of the city of 'New York, borou h of Brookl n, in the countyof Kings an State of ew l York, have invented a newand Improved full, clear, and exact description.

The purpose of the invention is I to provide a fountain-pen of that type which contains' a sack as a receiver and container of the writing fluid, so constructed thatit will be simple and economic and so that the parts will e few in number and may be assembled and secured in position in a rapid, convenient, and durable manner'. `Another purpose of the invention is to protwisting the sack to exclude air therefrom andfor untwisting it to draw in the ink by suction.

construct the head of the barrel which is connected with the sack that it may be operated as readily with the cap over the head as when The invention consists in the novel constructiony and combination of the several parts, as will be hereinafter lfully setforth, and pointed out in the claims.

ing drawings, forming a part of this specification, in'whlch similar characters of reference indica'te corresponding paits in both theafigures.

Figure 1 is a longitudinal section through the complete pen with the parts in normal osition; and ig. 2 is a section through the cad end of the en, showing the position of the arts when't e sack is twisted.

T e barrel is made in two sections-a main integral, and a head-section B. The body portion A of the barrel is provided with a chamberlll, which extends from the tip out nects with thehead-section B, and this chamber 11 is of uniform diameter throughout and connects with the feed-channel 12 1n the tip 10, in which channel the pen-nib 13 is located and the feeder 14, which latter may be Since t e feed-channel 12 is of less diameter than the chamber 11, a shoulder 15 is formed where the channel and chamber connect, as is shown in Fig. 1. The exterior 'l rear portion of the body A is provided with an annular recess 16, and the exterior Wall of this reduced or recessed portionl 16 of the body is provided with a ri ht ory left hand thread 17. The head B is l1 ewi'se provided with a chamber 18, lar er than the chamber 1.1 in the body-section but in communication with the said body-chamber, asis shown in both Figs. 1 and 2. The lower ortion of the head-section B is .provided wit an interior thread 19 to vengage with the exterior thread 17 of the body-section A, and when these two sections A and B are in normal position-that is, in substantially close relation--the` will engage a washer 20, ofl elastic material, ocated at the forward end portion of the exterior recess in the body-section A.

The head-section B of the 'pen is provided i with an opening 21 at its central portion, and this opening 21 is adapted to receive a lug 22 after the said'plu has been passed 1nto the outer end of a sac 23 of elastic material, the sack being normally in the form of a tube, as illustrated in Fig. 1, and the said plug is held in position by a pin 24, passed through the outer end of the head. At the inner'end of the sack 23, or that end /Which is' at the tip 10 ofthe body-section'AZ a sleeve 25 is fitted into the sack, as is shown in Flg. 1,

and the sleeve at its outer end has a flange f 26, which ts snugly to the wall ofthe chamberv11. The outer end portion of the said `sleeve 25 is secured to the shoulder 15 by a cement of any approved type. The en is provided with the usual cap C, whic normally covers the tip 10 of the pen and when i the pen is in use is placed'over the head B. In operation, as shown, when the head B is screwed to the left the sack 23 is twisted,

as shown in Fig. 2, to expel the air therefrom, and at such time the ti of the en is introduced into the writing uid, an then the head B is turned in a reverse direction, or to the right, whereupon the sack 23 is restored to its normal position, and the liquid is sucked up therein while such restoration takes place. As the head B is turned to the left it is unscrewed from the body A to a given extent, and this elongates the sack as Well astwists it, and when the head B has been turned as far as possible to the right the inner end of the head will engage with the washer 20-on the body.

Since the cap C is in close yet frictional engagement with the head B, it is possible to IIO turn the head to the right or to the left-while the capisin position thereon, so that the pen can b e filled even with the cap on the l ead; but the cap need not necessarily be in nection with the body-section, the body-section at its rear end being eXteriorly reduced in diameter and provided at its reduced portion with an exterior right-hand thread, the head having an interior thread corresponding to the exterior thread of the body, a sack, one of whose ends is` provided with a plug which enters and is secured in the opening at the rear end of the head-section, the opposite end of the sack having a anged sleeve inserted therein, which sleeve is secured to the forward wall of the barrel-chamber.

2. In a' fountain-pen, the combination with a barrel and its tip, the barrel being provided at its rear end, which is open, with an eXteriorly-threaded circumferentially-reduced section, and an elastic washer at the forward portion of the said reduced section, of a head having a chamber therein corre sponding to the chamber inthe barrel, the head having an interior thread for enga ement with the exterior thread of the bo y, the rear end of the head having an opening roduced therein, a tubular sack, a plug lbcated in one end of the sack, which plug and the portion of the sack containing it ll the opening in the rear end of the head, a fastening device for holding the plug and sack securely to. the head, the said sack extending the length of the chambers in the head and in the barrel, and a sleeve introduced into the forward end of the s'ack, being secured thereto, which sleeve is secured to the forward wall of the barrel-chamber for the purposes described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

AJACOB J. MEAD. 

